Table 5 Correlations between effective accumulated temperature and other indices.

Yield		Panicle m⁻²		Spikelet Panicle⁻¹	Filling ratio	Grain weight	Aboveground biomass	Harvest index
Early rice (ER)
SO–TP	−0.12	−0.08		0.39	−0.11	−0.36	0.16	−0.21
TP–FH	0.19	0.92^***		−0.45	−0.78^**	−0.69^*	0.85^***	−0.82^**
FH–MA	−0.33	0.02		0.07	−0.45	−0.35	0.14	−0.46
Total	−0.01	0.75^**		−0.25	−0.86^***	−0.80^**	0.80^**	−0.92^***
Late rice (LR)
SO–TP	−0.70^**		0.02	−0.56^*	−0.35	0.18	0.59^*	−0.21
TP–FH	0.47		0.09	0.52^*	0.19	−0.40	0.50	0.01
FH–MA	0.73^**		−0.42	0.21	0.68^**	0.15	0.25	0.54
Total	0.63^*		−0.17	0.40	0.46	−0.19	0.40	0.27

SO, sowing stage; TP, transplanting stage; FH, full heading stage; MA, mature stage. *, ** and *** denote significant differences at the 0.05, 0.01 and 0.001 probability level, respectively.

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